Product Summary

The SN74CB3T3245PW is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3245PW supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.

Parametrics

SN74CB3T3245PW absolute maximum ratings: (1)Supply voltage range: –0.5 to 7 V; (2)Control input voltage range: –0.5 to 7 V; (3)Switch I/O voltage range: –0.5 to 7 V; (4)Control input clamp current VIN < 0: –50 mA; (5)port clamp current VI/O < 0: –50 mA; (6)ON-state switch current: ±128 mA; (7)Continuous current through VCC or GND: ±100 mA; (8)Package thermal impedance: DBQ package 68 ℃/W, DGV package 92 ℃/W, DW package 58 ℃/W, PW package 83 ℃/W; (9)Storage temperature range: –65 to 150 ℃.

Features

SN74CB3T3245PW features: (1)Standard 245-Type Pinout; (2)Output Voltage Translation Tracks VCC; (3)Supports Mixed-Mode Signal Operation on All Data I/O Ports: 5-V Input Down to 3.3-V Output Level Shift With 3.3-V VCC, 5-V/3.3-V Input Down to 2.5-V Output Level Shift With 2.5-V VCC; (4)5-V-Tolerant I/Os With Device Powered Up or Powered Down; (5)Bidirectional Data Flow With Near-Zero Propagation Delay; (6)Low ON-State Resistance (ron) Characteristics (ron = 5 W Typ).

Diagrams

SN74CB3T3245PW logic diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SN74CB3T3245PW
SN74CB3T3245PW
Texas Instruments
Digital Bus Switch ICs 8-Bit FET 2.5/3.3V Lo-Vltg Bus Switch
Data Sheet
0-1: $1.27
1-25: $1.12
25-100: $0.89
100-250: $0.70
SN74CB3T3245PWE4
SN74CB3T3245PWE4
Texas Instruments
Digital Bus Switch ICs 8-Bit FET 2.5/3.3V Lo-Vltg Bus Switch
Data Sheet
0-1: $1.18
1-25: $0.95
25-100: $0.86
100-250: $0.76
SN74CB3T3245PWR
SN74CB3T3245PWR
Texas Instruments
Digital Bus Switch ICs 8-Bit FET 2.5/3.3V Lo-Vltg Bus Switch
Data Sheet
0-1: $1.00
1-25: $0.77
25-100: $0.70
100-250: $0.62
SN74CB3T3245PWG4
SN74CB3T3245PWG4
Texas Instruments
Digital Bus Switch ICs 8B FET 2.5V 3.3V LO VLTG Bus Switch
Data Sheet
0-1: $1.18
1-25: $0.95
25-100: $0.86
100-250: $0.76
SN74CB3T3245PWRG4
SN74CB3T3245PWRG4
Texas Instruments
Digital Bus Switch ICs 8B FET 2.5V 3.3V LO VLTG Bus Switch
Data Sheet
0-1430: $0.46
1430-2000: $0.44
2000-5000: $0.42
5000-10000: $0.41
SN74CB3T3245PWRE4
SN74CB3T3245PWRE4
Texas Instruments
Digital Bus Switch ICs 3.3-V ABT Octal Bus Trncvr W/3-St Otpt
Data Sheet
0-1430: $0.46
1430-2000: $0.44
2000-5000: $0.42
5000-10000: $0.41